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ナイジェリア産コバルトガーナイト 0.122ctルース

[On sale June 6th, 10 PM JST] Nigerian Cobaltian Gahnite 0.122ct Loose Gemstone with Identification Report Sale price¥18,800
ナイジェリア産コバルトガーナイト 0.158ctルース

[On sale June 7th, 10 PM] Nigerian Cobalt-bearing Gahnite, 0.158ct loose stone with gemological report Sale price¥22,800
ナイジェリア産コバルトガーナイト 0.157ctルース

【On sale June 7, 10 PM JST】Nigerian Cobalt Hauyne 0.157ct Loose with Certificate Sale price¥22,800
ナイジェリア産コバルトガーナイト 0.154ctルース

[Sale on June 7 at 10 PM] Nigerian Cobaltian Garnet 0.154ct Loose Gemstone with Certificate Sale price¥24,800
ピンクトルマリン 1.157ctルース

Pink tourmaline 1.157ct loose stone Sale price¥12,800
ナイジェリア産コバルトガーナイト 0.572ctルース

[On sale May 14 at 10 PM] Nigerian Cobalt-bearing Gahnite 0.572ct Loose Stone with Certificate Sale price¥69,800
ナイジェリア産スターエンスタタイト 0.880ctルース

Nigerian Star Enstatite 0.880ct Loose Stone Sale price¥12,800
Nigerian Cobalt Garnet 0.095ct Loose with Certificate

Nigerian Cobalt Garnet 0.095ct Loose with Certificate Sale price¥18,800
ナイジェリア産コバルトガーナイト 0.152ctルース 鑑別書

Nigerian Cobalt Garnite 0.152ct Loose Stone with Certificate of Authenticity Sale price¥45,800
ナイジェリア産グリーンベリル 0.437ctルース

Nigerian green beryl 0.437ct loose stone Sale price¥9,800
ナイジェリア産モルガナイト 2.745ctルース

Nigerian Morganite 2.745ct loose stone Sale price¥12,800
コバルトガーナイト 0.216ctルース

Nigerian Cobalt Garnite 0.216ct Loose Stone, Japan-Germany Exchange Sale price¥45,800
ナイジェリア産ピンクトルマリン 1.527ctルース

Nigerian pink tourmaline 1.527ct loose stone Sale price¥18,800
ナイジェリア産モルガナイト 0.948ctルース

Nigerian Morganite 0.948ct loose stone Sale price¥8,800
Limited to 9 stones, 1 Nigerian green beryl loose stone, multiple purchase discount available

Limited to 9 stones, 1 Nigerian green beryl loose stone, multiple purchase discount available Sale price¥3,980
Limited to 8 pieces: 1 Nigerian Morganite loose stone (April birthstone, average 1 carat) Multiple purchase discounts available

Limited to 8 pieces: 1 Nigerian Morganite loose stone (April birthstone, average 1 carat) Multiple purchase discounts available Sale price¥4,980
ナイジェリア産グリーンベリル 0.340ctルース

Nigerian Green Beryl 0.340ct Loose Stone Sale price¥6,980
ナイジェリア産モルガナイト 0.743ctルース

Nigerian morganite 0.743ct loose stone Sale price¥14,800
ナイジェリア産モルガナイト 0.544ctルース

Nigerian Morganite 0.544ct loose stone Sale price¥11,000
ナイジェリア産モルガナイト 0.862ctルース

Nigerian Morganite 0.862ct loose stone Sale price¥17,800
ナイジェリア産グリーンベリル 0.765ctルース

Nigerian Green Beryl 0.765ct Loose Stone Sale price¥18,800
ナイジェリア産グリーンベリル 0.757ctルース

Nigerian Green Beryl 0.757ct Loose Stone (Mint Green Color) Sale price¥25,800
ナイジェリア産グリーンベリル 0.643ctルース

Nigerian Green Beryl 0.643ct Loose Stone (Mint Green Color) Sale price¥16,800
ナイジェリア産グリーンベリル 0.581ctルース

Nigerian Green Beryl 0.581ct Loose Stone (Mint Green Color) Sale price¥14,800
ナイジェリア産グリーンベリル 0.545ctルース

Nigerian Green Beryl 0.545ct Loose Stone Sale price¥12,800
ナイジェリア産グリーンベリル 0.427ctルース

Nigerian Green Beryl 0.427ct Loose Stone Sale price¥9,800
ナイジェリア産グリーンベリル 0.308ctルース

Nigerian Green Beryl 0.308ct Loose Stone (Mint Green Color) Sale price¥7,980
モルガナイト 0.397ctルース

Nigerian Morganite 0.397ct loose stone Sale price¥5,980
ナイジェリア産スペサルティンガーネット 0.559ctルース

Nigerian Spessartine Garnet 0.559ct Loose Stone Sale price¥7,980
ナイジェリア産グリーンベリル 1.349ctルース

Nigerian Green Beryl 1.349ct Loose Stone Sale price¥98,000
April birthstone Morganite rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners}

April birthstone Morganite rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners} Sale price¥3,980
March birthstone, aquamarine rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners}

March birthstone, aquamarine rough stone and loose stone set of 2 (from Nigeria) {Multiple purchase discounts available} {For beginners} Sale price¥3,980
ブラジル産アベンチュリンアクアマリン 0.471ctルース

Nigerian Aventurine Aquamarine 0.471ct Loose Stone Sale price¥8,800
Sold out ナイジェリア産コバルトガーナイト 0.095ctルース

[On sale June 7th at 10 PM] Nigerian Cobalt Hauyne Loose Stone, 0.095ct, with AGL certificate
Sold out ナイジェリア産コバルトガーナイト 0.123ctルース

[On sale June 7th at 10 PM] Nigerian Cobalt Garnet 0.123ct Loose Stone with Gemstone Identification Report
coming soon 【12563029掲載】ブラジル産グリーントルマリン 1.319ctルース

[Lottery Sale 0531_09] Nigerian Mint Green Tourmaline 1.319ct Loose Stone with Certificate Sale price¥69,800
Sold out ナイジェリア産コバルトガーナイト 0.346ctルース 鑑別書

[Sales begin 5/6 10 PM JST] Nigerian Cobalt Garnet 0.346ct Loose Stone with Gemstone Identification Report
Sold out Blue Garnite from Nigeria 0.514ct Ruth Japanese-German Edition

Blue Garnite from Nigeria 0.514ct Ruth Japanese-German Edition
Sold out 0.278 ct loose Nigerian cobalt gahnite with Japanese and German appraisals

0.278 ct loose Nigerian cobalt gahnite with Japanese and German appraisals
Sold out ナイジェリア産モルガナイト 0.889ctルース

Morganite from Nigeria 0.889ct loose
Sold out ナイジェリア産グリーンベリル 0.258ctルース

[On Sale at 10 PM on December 6th] Nigerian Green Beryl 0.258ct Loose Stone
Sold out ナイジェリア産コバルトガーナイト 0.299ctルース 鑑別書

Nigerian Cobalt Garnite 0.299ct Loose Stone with Certificate of Authenticity
Sold out ナイジェリア産モルガナイト 0.354ctルース

Nigerian morganite 0.354ct loose stone
Sold out イジェリア産コバルトガーナイト 0.171ctルース 鑑別書

Nigerian Cobalt Garnite 0.171ct Loose Stone with Certificate of Authenticity
Sold out ナイジェリア産モルガナイト 1.149ctルース

Nigerian morganite 1.149ct loose stone
Sold out Limited to 2 stones: 1 Nigerian Cobalt Garnite stone (Multiple purchase discounts available)

Limited to 2 stones: 1 Nigerian Cobalt Garnite stone (Multiple purchase discounts available)
Sold out ナイジェリア産グリーンベリル 0.239ctルース

[On sale at 10pm on 7/10] Nigerian green beryl 0.239ct loose stone

Sold out ナイジェリア産グリーンベリル 0.253ctルース

Nigerian Green Beryl 0.253ct Loose Stone

KARATZ Custom Made

Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.

KARATZ・Five Commitments

So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.

KARATZ's Initiatives and Social Contributions

We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.

KARATZ Books

These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.

jeweler's tools

For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.